SKIN

Blotchy Skin

Your skin is so blotchy from the heat, people are mistaking you for a royal (Charles, not Kate).

Graf's magic bullet: Grab an evening primrose oil capsule, puncture it, and smooth the contents on clean, flushed skin at night. "It's very high in the essential fatty acid gamma-linolenic acid, which restores the moisture barrier and reduces the redness in a few hours," she says. To cover blotches or large areas of redness, Graf suggests mineral makeup. "The minerals help calm skin but still cover redness, because the pigment is concentrated," she says. We like Revlon ColorStay Aqua Mineral Makeup.

SKIN

Pimples From Breakouts

You slathered on sunscreen to prevent wrinkles, but the pimples it caused make you look like a teenager.

To prevent pimples and calm existing ones, wash skin with a salicylic acid or benzoyl peroxide face wash at night, says Fredric Brandt, a dermatologist in New York City and Miami. (One with benzoyl peroxide: Proactiv Renewing Cleanser.) Let it sit on the skin so it absorbs before rinsing.

SKIN

Melting Makeup

You decided to walk to work during a heat wave, but once you got there, your makeup had called in sick.

First, hide out at your desk for a few minutes until you cool down, then use blotting paper "to absorb the excess perspiration," says Ciucci. Don't reapply foundation; just redistribute it with a damp sponge (Ciucci swears by the egg-shaped BeautyBlender) using bouncy, tapping motions. Wipe off any rogue eyeliner, mascara, or shadow with a cotton swab. And if you need more lip color or blush, choose creams, which blend evenly; for durability, go with waxy eyeliner or eye-shadow sticks.

BODY

Ingrown Hairs

You waxed to get smooth, not to get red bumps.

Immediately after waxing, swab the area with an astringent containing salicylic acid (like Tend Skin Liquid or Clean & Clear Deep Cleaning Astringent) to dissolve the dead skin that can trap hairs. Then layer on a hydrocortisone cream or aloe gel to reduce redness and swelling. If the red dots don't go away after a week, you may be looking at an all-too-common case of folliculitis—an inflammation of the hair follicle frequently caused by bacteria. Washing with salicylic acid cleansers daily can help (Avon Clearskin Blemish Clearing Acne Body Wash has 2 percent of the ingredient). If there is pain, tenderness, or swelling, see a dermatologist to rule out bacterial infection.

BODY

Really, Really, Bad Sunburn

You screwed up. You got scorched. Now move on.

Take two ibuprofen to dull the pain and reduce swelling, says Brandt. Jump in a cool shower, gently pat skin dry, and then place bags of frozen peas over the burned areas. Dab on a 1 percent hydrocortisone cream, and then keep skin well hydrated with a fragrance-free after-sun lotion (Graf likes Aveeno Skin Relief 24HR Moisturizing Lotion with cooling menthol and natural colloidal oatmeal). "Aloe soothes the skin and helps with inflammation, too," says Brandt, who recommends staying out of the sun—as in, you are now a vampire—until the burn heals.

BODY

Peeling Skin

So you no longer resemble a lobster. Now you're a walking biohazard zone, shedding dead cells.

First, hands off. "The worst thing you can do is pick at peeling skin," says Jeffrey Dover, an associate clinical professor of dermatology at Yale School of Medicine. "You'll cause even more damage."

Allow scaly skin to shed naturally, and focus on keeping the area well hydrated by slathering on a moisturizer rich in ceramides, such as Curél Sensitive Skin Remedy Fast Absorbing Daily Lotion for Dry, Sensitive Skin. "It will replenish the lipids you're losing from the upper layers of skin that are peeling off," says Brandt, who also recommends upping your water intake. "You lose more fluids when you're recovering from a burn." And avoid anti-aging ingredients until your skin returns to normal or you could develop a sensitivity to an ingredient.

BODY

Heat Rash

The key is to chill out, literally. Take a cold shower, change into loose-fitting clothes, and avoid thick, heavy moisturizers, which can exacerbate a heat rash. Speed your skin's natural recovery process by dabbing the affected area with calamine lotion—"the combination of zinc and ferric oxide helps keep it cool," says Brandt. One thing to skip? Makeup. It can prolong the rash by blocking sweat ducts. The good news: You won't have to stay in hiding for long. "Cool down, and the rash should clear up within a day or two," says Brandt.

BODY

Streaky Self-Tanner

You picked bottle bronze over the sun—resulting in one streaky mess.

Squeeze fresh lemon juice onto a loofah and start scrubbing away dark splotches in a warm shower. If you have a few days before the area is revealed, smooth on a layer of body lotion containing alpha hydroxy acid (like AmLactin Moisturizing Body Lotion) both morning and night. "It increases the natural turnover of the skin cells, which will speed the fading process," Brandt says. If there's no time to spare, disguise streaks with a mix of half self-tanner and half moisturizer to lighter areas only once a day until they catch up with the rest of your bottle bronze.

BODY

Swimsuit Strap Marks

Even the most meticulous applier of SPF occasionally winds up with strap marks.

BODY

Blisters

Ow. Ow. Ow. Your blisters demand swift attention.

As much your blister may hurt, resist the urge to pierce it, says Rock Positano, a foot specialist at the Hospital for Special Surgery in New York City, because it will increase the risk of infection. To speed healing, wash your feet in mild soap and water, then cover the blister with a bandage (Brandt likes the DuoDerm bandage). If the blister breaks on its own, cleanse the area with an iodine solution, dab on Neosporin, and cover it up again. Next time, place a soft, gel-like blister guard (such as Band-Aid Blister Block) or a blob of Chapstick on the part of your foot where the shoes rub to prevent blisters.

HAIR CARE

Dry, Brittle Hair

You've been making hay while the sun shines...right on top of your head.

The combination of salt and chlorine is usually behind strawlike hair. To camouflage the damage, grab a cream or pomade with a waxy texture (we like L'Oréal Paris Studio Line Overworked Hair Putty) and dab it on the last two or three inches of hair to fuse split ends.

Then start a rigorous regimen of conditioning treatments; "they penetrate the hair and strengthen it from the inside," says hairstylist Odile Gilbert. Once a week, she recommends massaging a walnut-size blob of deep conditioner (something like Pantene Medium Thick Hair Solutions Intensive Restoration Treatment mask) into wet hair. Cover with a damp towel and let it sit for 20 minutes before rinsing away any residue. And (please) consider a trim. "It's the only way to get rid of split ends," says hairstylist Garren.

HAIR CARE

Brassy Highlights

Wash hair with a violet-tinged shampoo, like Clairol Professional Shimmer Lights Shampoo, and let it soak in for a few minutes in the shower before rinsing. "The formula has enough violet pigment to start neutralizing the unwanted warmth and makes your blonde look crisper straight away," says hairstylist Nathaniel Hawkins. Then develop color-protecting habits: Don't go into the sun without spritzing hair with a UV filter (Hawkins likes Phyto Plage L'Originale Protective Beach Spray), and always wet hair with tap water before you take a dip (so it doesn't soak up the chlorinated or salty water like a sponge). And be sure to rinse well afterward.

HAIR CARE

Green Highlights

Your sick blonde highlights are now sickly green.

The green tinge comes from mineral deposits in pool water, not chlorine, says cosmetic chemist Ni'Kita Wilson. To remove that color from hair, Hawkins recommends Malibu C Swimmers Natural Wellness Treatment. A shampoo with gold tones, such as Bumble and Bumble Color Support Shampoo The Golden Blondes, will also help counteract the Nicki Minaj vibe. If that fails, many salons offer deep-clarifying treatments that can help. Next time, coat dry hair in oil (baby oil will do, or try Kérastase Oléo-Complexe Versatile Beautifying Oil), and then rinse with tap water before and immediately after swimming. "To be safe, processed blondes should wash hair twice with a clarifying shampoo at the end of the day, too," says Hawkins. We like Fekkai Apple Cider Clarifying Shampoo.

HAIR CARE

Oily Roots

Your hair crossed over from shiny to oily between your morning latte and lunch.

HAIR CARE

Faded Hair Color

Your faded denim shorts are a reminder of the long summer days; so is your faded single-process color.

"You're crazy if you color your hair but don't use a shampoo and conditioner to protect it," says hairstylist Kevin Mancuso, who likes Nexxus Color Assure Replenishing Color Care Shampoo. Mancuso also suggests using the color-refreshing treatments included in many at-home semipermanent hair-color kits, like Clairol Natural Instincts. "It takes five minutes in the shower and will buy you a few more weeks," he says.

A sunburn, peeling skin, and blisters from your cute new sandals won't require an EMT but are still cause for panic. Here, a guide to the quickest, cleverest ways to address every hot-weather beauty emergency.